{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["geographical phenomenon", "media", "instrument"], "input": "He did not move into professional football until he joined St Mirren in 1980 , at the age of 20 ."}
{"geographical phenomenon": [], "media": [], "instrument": []}